DEVICE FOR FORMATION OF CURRENT PULSES FOR LOCATION OF SHORTING IN CABLE LINES Russian patent published in 1994 - IPC

FIELD: electric measurement technology. SUBSTANCE: salient feature of invention lies in use of no-contact element 4 built on thyristors. For control over it device is supplemented with threshold unit 2 and control unit 3 with output isolation transformer 18. Transformer has number of secondary windings corresponding to number of thyristors of commutation element used in device. Design of control unit 3 is simple which provides for required reliability and makes possible to obtain controlling pulses of preassigned frequency. EFFECT: simplified design, increased reliability and accuracy of device. 1 dwg